Power Play launches non-traded solar energy index

Power Play Research today launched the Power Play Global Solar Energy Index (PPGSEI), which will record the performance of more than 50 solar energy companies in developed countries worldwide. The index will report the monthly and year-to-date returns of the companies. It is designed for informational purposes and isn’t a traded index, the Ridgefield, Conn.-based alternative energy research firm said in a statement. The companies in the index had an average market-return decline of 0.95% last month, but have posted a gain of 7.85% year-to-date through June 30. Power Play plans to release a Global Wind Energy Index and Global Water Index later this year.